<style>
  body {
    background-color: white;
  }
</style>
<svg width="600" viewBox="0 0 150 100" xmlns="http://www.w3.org/2000/svg">
  <circle cx="100" cy="50" r="40" fill="#b3b3b3" />
  <circle cx="50" cy="50" r="40" fill="blue" />
</svg>
